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DALLAS Police say a woman who was sliced on the hand during a robbery outside her Forest Hills home is one of 20 victims who have been targeted while their guards are down upon returning home.

The woman had to undergo surgery following the Feb. 6 attack. Many of the robberies have occurred as residents have returned home in the evening hours.

Police believe more than one suspect is involved, because the description vary in the cases. They are unsure if they are connected, despite the targets being similar: in some cases the suspect uses a gun, while in others he or she uses a knife.Residents in east and northeast Dallas are on high alert.

'I don't work, I'm retired. So I see things, maybe things I don't want to see, but people should be as cognizant of as much as they can be about what's going on,' said residentDavid Sutherland.

According to police, the incidents date back to January 2.

In the majority of therobberies the suspects have been seen wearing either a ski mask or a black hooded sweatshirt.

'Because the weapon used (gun, knife) and the suspect descriptions (unknown, white, black, Hispanic) vary widely in these offenses, it is likely that not all of these robberies are committed by the same suspect or group of suspects,' police said in a news release.

Residents are urged to be vigilant and aware of their surroundings at all times.Anyone who sees suspicious activity is asked to call 911 immediately.Anyone with information on these offenses or any of the suspects should contact Crime Stoppers at214.373.TIPS or the Dallas Police Robbery Unit at214.671.3584.

Email mmoore@wfaa.com

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